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TW200603131A - Pick-up head and disk device - Google Patents

Pick-up head and disk device

Info

Publication number
TW200603131A
TW200603131A TW094106394A TW94106394A TW200603131A TW 200603131 A TW200603131 A TW 200603131A TW 094106394 A TW094106394 A TW 094106394A TW 94106394 A TW94106394 A TW 94106394A TW 200603131 A TW200603131 A TW 200603131A
Authority
TW
Taiwan
Prior art keywords
light
pick
checking
head
inclining angle
Prior art date
Application number
TW094106394A
Other languages
Chinese (zh)
Other versions
TWI323889B (en
Inventor
Hidetoshi Kabasawa
Original Assignee
Teac Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teac Corp filed Critical Teac Corp
Publication of TW200603131A publication Critical patent/TW200603131A/en
Application granted granted Critical
Publication of TWI323889B publication Critical patent/TWI323889B/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1362—Mirrors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

A pick-up head is provided to raise the data reading and recording quality. By changing the inclining angle of the pick-up head and moving the lens frame 16 horizontally, the laser from the light source would focus on the disk, then the pick-up head reads or records the data. The pick-up head includes a reflective body 18, a checking light detector 26, and an inclining angle obtaining device. The reflective body 18 is disposed on the lens frame 16, and reflects some part of the light emitted from the light source to the lens frame. The checking light detector 26 is fixed on a position where the reading and the recording laser reflected by the reflective body 18 serves as the checking reflective light 24, the accepted light quantity of the checking reflective light 24 varies according to the inclining angle of the lens frame. The inclining angle obtaining device obtains the inclining angle of the lens according to the accepted light quantity checked by the checking light detector 26.
TW094106394A 2004-07-12 2005-03-03 Pick-up head and disk device TWI323889B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004204778A JP4093209B2 (en) 2004-07-12 2004-07-12 Optical pickup device and optical disk device

Publications (2)

Publication Number Publication Date
TW200603131A true TW200603131A (en) 2006-01-16
TWI323889B TWI323889B (en) 2010-04-21

Family

ID=35783654

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094106394A TWI323889B (en) 2004-07-12 2005-03-03 Pick-up head and disk device

Country Status (4)

Country Link
US (1) US7701814B2 (en)
JP (1) JP4093209B2 (en)
TW (1) TWI323889B (en)
WO (1) WO2006006296A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4527067B2 (en) 2005-03-31 2010-08-18 株式会社エヌ・ティ・ティ・ドコモ Mobile station, transmission method, and mobile communication system
JP2009087464A (en) * 2007-09-28 2009-04-23 Toshiba Corp Optical disc apparatus and tracking control method
JP2009104732A (en) * 2007-10-25 2009-05-14 Hitachi Maxell Ltd Optical pickup lens
US7729063B2 (en) * 2007-11-27 2010-06-01 Itt Manufacturing Enterprises, Inc. Screw actuated night vision goggle tilt mechanism
WO2024241422A1 (en) * 2023-05-22 2024-11-28 日本電信電話株式会社 Optical connector connection jig and optical connector connection method
USD1097522S1 (en) * 2024-08-08 2025-10-14 Wolverine Outdoors, Inc. Footwear upper

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501665A (en) * 1985-06-10 1987-01-02 Philips Nv OPTICAL SCANNER WITH POSITION AND POSITION DETECTION SYSTEM FOR AN ELECTROMAGNETICALLY BEARING OBJECTIVE.
JPS6352336A (en) * 1986-08-21 1988-03-05 Ricoh Co Ltd optical pickup device
JP2635372B2 (en) * 1988-06-28 1997-07-30 松下電器産業株式会社 Light head
JP2827186B2 (en) 1991-08-31 1998-11-18 日本電気ホームエレクトロニクス株式会社 Optical disk warpage detection method and optical pickup
JPH06111350A (en) * 1992-09-29 1994-04-22 Matsushita Electric Ind Co Ltd Optical disc tilt detection device
US5430699A (en) * 1993-02-24 1995-07-04 Matsushita Electric Industrial Co., Ltd. Optical reading and writing device
KR100230250B1 (en) * 1994-12-26 1999-11-15 윤종용 Method and apparatus for correcting aberration by tilting optical disc
JPH09212901A (en) * 1996-01-31 1997-08-15 Matsushita Electric Ind Co Ltd Light head
JP2000057585A (en) 1998-08-17 2000-02-25 Nec Corp Attaching position monitor device of objective lens, and attaching position adjusting method of objective lens
JP2003132568A (en) * 2001-10-25 2003-05-09 Sanyo Electric Co Ltd Optical disk device and tilt detection method
JP4133577B2 (en) * 2002-09-19 2008-08-13 株式会社リコー Optical disk apparatus and tilt control amount adjustment method

Also Published As

Publication number Publication date
WO2006006296A1 (en) 2006-01-19
JP2006031749A (en) 2006-02-02
JP4093209B2 (en) 2008-06-04
US20070201327A1 (en) 2007-08-30
US7701814B2 (en) 2010-04-20
TWI323889B (en) 2010-04-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees